Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8023391 | Photodetection device and optical disk device | Takashi Sonoyama | 2011-09-20 |
| 6920002 | Reproducing amplifier and magnetic recording and reproducing apparatus employing the reproducing amplifier | Michiya Sako, Kazue Tokuchida | 2005-07-19 |
| 6798601 | Impact detecting circuit, impact detecting apparatus, and recording and reproducing apparatus including same | Koichi Kobe | 2004-09-28 |
| 6762894 | Head apparatus, hard disk apparatus and recording and playback apparatus | Norio Shoji | 2004-07-13 |
| 6683740 | Architecture for a hard disk drive write amplifier circuit with damping control | Soon-Gil Jung, Shang-Ching Dong, Hiroshi Takeuchi, Norio Shoji, Michiya Sako | 2004-01-27 |
| 6154333 | Amplification circuit | Norio Shoji | 2000-11-28 |
| 5818211 | Current generating circuit for read/write head | Michiya Sako | 1998-10-06 |